On road tires
 

I tried the 1:8 scale on road radial tires from Ipanema and it was awesome.
No worries about ballooning up and it grips pretty good too. I was running a OCM Evo with a 43/20 gear combo on a MMM V3, 5S Polyrc, 1515 2700kv. No more worries about the foam coming out of the tires.:party: It cost 30.00 for a pair of tire and wheels. I highly recommend it for high speed passes.

+1 here

Any links please?

Give Losi Rally premounts a try as well. They are good for 103mph for sure.

tires
 

I bought mine at Leisure Hobbies at Joliet IL. phone # 815-439-1477 and also they have some here but only on 45 shore # 813-920-2428. http://ipanemasports.com/default.aspx
I tried a 40 shore and it is softer, the more you use it the softer it gets, kind like slick tires for drag racing.
Also it cost 30.00 for a pair.